And finally tonight, meet a man who says he can turn a killer shark into an affectionate pet. Can he really? Abc's matt gutman gambles that he's right. Reporter: It may be the sum of all human fears. Incredible. Reporter: Coming face to jaws with a 14-foot tiger shark considered the second deadliest after the great white. Wow. Reporter: But we went to the ba ba baha mas to meet this man, jim abernathie who insists these predators are misunderstood. You think sharks like affection? No, I know sharks like affection because they come back for it like a dog or a cat. Reporter: Abernathie calls them his pets, especially a 14 foot tiger sharks he's named emma. He says he's known her for nine years. Wishful thinking? We dive in. 40 feet down it's a bizzard of sharks. They keep anythingling at the cameras. Another one gobbling the camera I'm holding and then all of a sudden we're surrounded by giant tiger sharks. Turn around, turn around! These are right in the area. There is actually four. Reporter: Coasting in, almost docile. And then there she is, emma. Watch how slowlily she approaches abernathie. Hello, emma. Reporter: Experts tell us these predators can indeed about dangerous but they're used to having humans around. Abernathie hopes that by showing humans can swim with sharks, they'll do a better job of protecting them and maybe showing them some love. Matt gutman, abc news, the baham bahamas.

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